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VU Research Portal

Recovery from extended day and night schedules Merkus, S.L.

2017

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citation for published version (APA)

Merkus, S. L. (2017). Recovery from extended day and night schedules.

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Download date: 16. Oct. 2021

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List of Publications

Acknowledgements

About the Author

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189

List of publications

L

List of publications

International publications

Werner EL, Merkus SL, Mæland S, Jourdain M, Schaafsma F, Canevet JP, Weerdesteijn KH, Rat C, Anema JR. Physicians’ assessments of work capacity in patients with severe subjective health complaints: a cross-sectional study on differences between five European countries. BMJ Open 2016;6(7):e011316.

Merkus SL, Holte KA, Huysmans MA, van Mechelen W, van der Beek AJ. Nonstandard working schedules and health: the systematic search for a comprehensive model. BMC Public Health 2015;15:1084

Merkus SL, Holte KA, Huysmans MA, Hansen ÅM, van de Ven PM, van Mechelen W, van der Beek AJ. Neuroendocrine recovery after 2-week 12-h day and night shifts: an 11-day follow-up. Int Arch Occup Environ Health 2015;88(2):247-57.

Merkus SL, Holte KA, Huysmans MA, van de Ven PM, van Mechelen W, van der Beek AJ. Self- Reported Recovery from 2-Week 12-Hour Shift Work Schedules: A 14-Day Follow-Up. Saf Health Work 2015;6(3):240-8.

Merkus SL, van Drongelen A, Holte KA, Labriola M, Lund T, van Mechelen W, van der Beek AJ.

The association between shift work and sick leave: a systematic review. Occup Environ Med 2012;69(10):701-12.

van Drongelen A, Boot CR, Merkus SL, Smid T, van der Beek AJ. The effects of shift work on body weight change - a systematic review of longitudinal studies. Scand J Work Environ Health 2011;37(4):263-75.

Horneland AM, Moen BE, Holte KA, Merkus SL, Ellingsen KL, Carter T, Aas RW, Ulven AJ. Loss of health certificates among offshore petroleum workers on the Norwegian Continental Shelf 2002-2010. Int Marit Health 2011;62(4):266-75.

Dutch publications

van Drongelen A, Boot CR, Merkus SL, Smid T, van der Beek AJ. De effecten van onregelmatige werktijden op toename van lichaamsgewicht. Tijdschrift voor toegepaste Arbowetenschap 2011;2011(4):122-130.

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acknowledgements

Acknowledgements

The PhD dissertation that you hold in your hands is the result of team work; a team of many people who contributed towards its production in numerous, and sometime unseen, ways. To all those who made this book possible, in Norway, the Netherlands, and Angola, I owe a great big THANK YOU!

Firstly, I am thankful for my PhD-project team—my supervisors Allard van der Beek, Wil- lem van Mechelen, Maaike Huijsmans, and Kari Anne Holte, and my project group at IRIS Brita Gjerstad and Astrid Solberg—who provided practical and scientific guidance.

Allard, thank you for trusting Luc’s judgement by taking me on as a PhD-student. Thank you for providing the opportunity to learn and develop my skills as a researcher. Your insight into complex problems has helped me clarify my thoughts and the ease with which you made important project-related decisions have taught me to be more pragmatic. Your careful read- ing and commenting on countless revisions of this manuscript have made this book what it is;

I thank you for your patience, support, and guidance!

Willem, I also thank you for taking me on at EMGO and for providing the opportunity and trust to finish the project. Thank you for keeping the project on track by providing a bird’s eye view over its content and progress. Your endless patience and ability to make time in your busy schedule for colleagues and PhD-students, including me, is admirable; you reminded me to focus on what is important. You also reminded me to enjoy the time on the PhD project;

and not to forget to take time off from the project to travel through our beloved Africa!

Maaike, I am ever grateful for your patience, understanding, support, and continuous encouragement which helped me overcome my crisis situation and finish this dissertation.

You always held me to high research standards, for which I thank you! Although you came into the project at a later stage, you taught me a lot. You taught me to set clear goals, to be transparent, to recognise what is important. You taught me how to question thoughts and express ideas. And maybe most importantly: to keep it simple stupid, because clear thinking makes clear writing, and vice-versa.

Kari Anne, thank you for providing the opportunity to do my PhD at IRIS. I greatly appreci- ate that your door was always open for me, and that you always took the time for in-depth discussions of the project! Your everlasting optimism and creativity showed your enthusiasm for research, which was encouraging. Thank you for giving me the space to be me, and for giving me the freedom to explore on my own.

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acknowledgements

A As part of the project team, Astrid and Brita not only made this book possible, you more

importantly made the project enjoyable! Our project planning meetings were always fun and laid back thanks to Brita, while data collection was structured and well organised thanks to Astrid.

Secondly, I am also thankful for all the co-authors, who are not my supervisors, for their meaningful contributions towards the articles in this book.

In order of appearance, I would like to thank Alwin van Drongelen who co-authored two papers with me found in this book. It was always fun working with you! As the two lone PhD-students studying shift work it was also always good meeting up for coffees when in Amsterdam to discuss both challenges and achievements of our projects.

My thanks go out to Merete Labriola and Thomas Lund, for their time spent extracting data in the systematic review on sick leave and shift work. But more importantly, I thank you for bringing your cheerful presence and enthusiasm for research to IRIS; it was contagious! I also fondly remember my visit to Denmark, where you both welcomed me with open arms into your workplace and your home.

Thank you, Peter van de Ven, for sharing your insights and helping me with the compli- cated statistical analyses of two of my papers. Åse Marie Hansen, I appreciate your expert advice regarding the study of salivary cortisol. Thank you too for taking the time to visit our project group in Stavanger.

My thanks also go out to the members of the reading committee; thank you for taking the time to read my dissertation and for being present at my defence.

I feel blessed to have Suzan Robroek and Hanjeko Merkus as my paranymphs by my side on the big day. Thank you both for supporting me during this whole PhD-thing, and thank you for being there for me while I finally finish what I started so many years ago!

Thirdly, I am grateful for my colleagues, friends, and family; in Norway, in the Netherlands, and in Angola. Many friends, including neighbours, have helped me stay sane through these challenging years. Their support and care helped me overcome setbacks and to enjoy life next to a PhD. I greatly value your friendship.

Most of my gratitude goes out to Jasper Zoethout, without your belief in me this book would not have become reality. I have been amazingly fortunate to have you in my life. I deeply appreciate your unfailing support, both emotionally and financially, during the many

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acknowledgements

years it took ‘us’ to finish this PhD. I thank you for your patience, your understanding, your encouragement, and our adventures together; it has given me the strength to finish this book.

Thank you Mum and Dad for supporting me and always having your door open for me on my many trips to the Netherlands. I also thank Ella and Peter for letting me stay in your lovely Amsterdam home for half a year and for the warm cuddles from Jimmy the cat.

I greatly value my colleagues—especially the ‘girls’—at IRIS in Norway: Astrid, Randi, Janne, Kathrine, Ida, Kari, Elisabeth, Kjersti, Claudia, Anne Marte, and Ann Karin for our one-on-one chats and our group coffees at IRIS or our wine evenings in town.

I also thank my ‘room mates’ at EMGO: Jarry, Wendy, Kristel, and Peter for your quiet and understanding environment as well as our many helpful and fun conversations. Thank you, Diana, for our coffees at EMGO and for the cosy dinners at your home. I appreciate Diana and Eva for allowing me to stay in your apartments while in Amsterdam.

I would like to thank Rik Looijmans and Suzanne Peters for making the EpidM-courses so memorable.

Thanks go out to Annette Harris for your research amongst offshore workers, and for our discussions that helped me sort out the technical details of my work.

And what would you do without friends? Thank you Annick, Annelies, and Suzanne W for the girl-talk and the much needed relaxing visits to the sauna. Thanks go out to the VU- meiden Suzan, Sietske, Ellen, Yvonne, and Anouk for your support and warmth every time we meet. Thanks also go out to my Stavanger friends Kiki, Rachael, Phil, Jen, Dave, Neil, Oana, Morten, Päivi, and Kristoffer for making my time in Stavanger fun. Thank you Adam and especially Cecile for keeping me sane! Thanks also go out to Angolan neighbours Knut, Eva, Rita, Tor, Berit, Arve, Eirin, Per, Ana Paola, Felipe, Joha, and Carlos, for your moral support and making compound life memorable. It was also great fun with Dorothée, Cyrille, Irina and Fabio to take my mind off work; I dearly hope we stay in touch!

Last, but not least, I express my sincere gratitude to all research participants for gener- ously sharing their time filling in questionnaires and spitting in tubes for the sake of science.

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about the author

A

About the author

Suzanne Merkus was born in Roma, Lesotho (Africa) where her parents gave her a Basotho middle name: Lerato. It means Love. In total she spent 11 years of her childhood in Sub- Saharan Africa, which next to Lesotho included Malaŵi and South Africa. After graduating from secondary school in the Netherlands she went on to study Human Movement Sciences at the VU University in Amsterdam. For her master’s research project she returned to Malaŵi for 6 months to study the physical functioning and quality of life of people using assistive technology. She successfully graduated in 2007.

After finishing her studies in Human Movement Sciences, Suzanne moved to Norway. Here she obtained the position as PhD-student at the International Research Institute of Stavanger (IRIS) in 2009 to study the effects of Norwegian offshore shift schedules. In 2010 she was of- ficially accepted into the PhD program at the EMGO institute at the VU University Medical Centre in Amsterdam (the Netherlands). Here she obtained a master’s degree in Epidemiology and presented her work at several international conferences. Next to her PhD-project, Su- zanne was involved in several projects while working at IRIS on offshore work. While finishing her PhD, she worked part-time at Uni Research Health in Bergen (Norway) from 2014-2016. In 2015, Africa called again and she moved to Angola for 9 months.

Now Suzanne lives and works in Oslo (Norway), where she is a post-doc at the National Institute of Occupational Health studying the effects of physical work load on musculoskeletal disorders.

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